Electro Magnetic Induction And Alternating Currents Question 600
Question: If the current 30 A flowing in the primary coil is made zero in 0.1 sec. The emf induced in the secondary coil is 1.5 volt. The mutual inductance between the coil is [Pb PMT 2003]
Options:
A) 0.05 H
B) 1.05 H
C) 0.1 H
D) 0.2 H
Show Answer
Answer:
Correct Answer: A
Solution:
$ e=M\frac{di}{dt}\Rightarrow 1.5=M\times \frac{30}{0.1}\Rightarrow M=0.05\ H $
